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path: root/drivers/acpi/executer/exmisc.c
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Diffstat (limited to 'drivers/acpi/executer/exmisc.c')
-rw-r--r--drivers/acpi/executer/exmisc.c43
1 files changed, 25 insertions, 18 deletions
diff --git a/drivers/acpi/executer/exmisc.c b/drivers/acpi/executer/exmisc.c
index 5ad34566738..48c18d29222 100644
--- a/drivers/acpi/executer/exmisc.c
+++ b/drivers/acpi/executer/exmisc.c
@@ -98,8 +98,8 @@ acpi_ex_get_object_reference(union acpi_operand_object *obj_desc,
default:
- ACPI_REPORT_ERROR(("Unknown Reference opcode %X\n",
- obj_desc->reference.opcode));
+ ACPI_ERROR((AE_INFO, "Unknown Reference opcode %X",
+ obj_desc->reference.opcode));
return_ACPI_STATUS(AE_AML_INTERNAL);
}
break;
@@ -114,8 +114,8 @@ acpi_ex_get_object_reference(union acpi_operand_object *obj_desc,
default:
- ACPI_REPORT_ERROR(("Invalid descriptor type %X\n",
- ACPI_GET_DESCRIPTOR_TYPE(obj_desc)));
+ ACPI_ERROR((AE_INFO, "Invalid descriptor type %X",
+ ACPI_GET_DESCRIPTOR_TYPE(obj_desc)));
return_ACPI_STATUS(AE_TYPE);
}
@@ -166,15 +166,18 @@ acpi_ex_concat_template(union acpi_operand_object *operand0,
u8 *end_tag;
acpi_size length0;
acpi_size length1;
+ acpi_size new_length;
ACPI_FUNCTION_TRACE("ex_concat_template");
/*
* Find the end_tag descriptor in each resource template.
- * Note: returned pointers point TO the end_tag, not past it.
- *
- * Compute the length of each resource template
+ * Note1: returned pointers point TO the end_tag, not past it.
+ * Note2: zero-length buffers are allowed; treated like one end_tag
*/
+
+ /* Get the length of the first resource template */
+
status = acpi_ut_get_resource_end_tag(operand0, &end_tag);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
@@ -182,19 +185,22 @@ acpi_ex_concat_template(union acpi_operand_object *operand0,
length0 = ACPI_PTR_DIFF(end_tag, operand0->buffer.pointer);
+ /* Get the length of the second resource template */
+
status = acpi_ut_get_resource_end_tag(operand1, &end_tag);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
- /* Include the end_tag in the second template length */
+ length1 = ACPI_PTR_DIFF(end_tag, operand1->buffer.pointer);
+
+ /* Combine both lengths, minimum size will be 2 for end_tag */
- length1 = ACPI_PTR_DIFF(end_tag, operand1->buffer.pointer) +
- sizeof(struct aml_resource_end_tag);
+ new_length = length0 + length1 + sizeof(struct aml_resource_end_tag);
- /* Create a new buffer object for the result */
+ /* Create a new buffer object for the result (with one end_tag) */
- return_desc = acpi_ut_create_buffer_object(length0 + length1);
+ return_desc = acpi_ut_create_buffer_object(new_length);
if (!return_desc) {
return_ACPI_STATUS(AE_NO_MEMORY);
}
@@ -207,9 +213,10 @@ acpi_ex_concat_template(union acpi_operand_object *operand0,
ACPI_MEMCPY(new_buf, operand0->buffer.pointer, length0);
ACPI_MEMCPY(new_buf + length0, operand1->buffer.pointer, length1);
- /* Set the end_tag checksum to zero, means "ignore checksum" */
+ /* Insert end_tag and set the checksum to zero, means "ignore checksum" */
- new_buf[return_desc->buffer.length - 1] = 0;
+ new_buf[new_length - 1] = 0;
+ new_buf[new_length - 2] = ACPI_RESOURCE_NAME_END_TAG | 1;
/* Return the completed resource template */
@@ -268,8 +275,8 @@ acpi_ex_do_concatenate(union acpi_operand_object *operand0,
break;
default:
- ACPI_REPORT_ERROR(("Invalid object type: %X\n",
- ACPI_GET_OBJECT_TYPE(operand0)));
+ ACPI_ERROR((AE_INFO, "Invalid object type: %X",
+ ACPI_GET_OBJECT_TYPE(operand0)));
status = AE_AML_INTERNAL;
}
@@ -370,8 +377,8 @@ acpi_ex_do_concatenate(union acpi_operand_object *operand0,
/* Invalid object type, should not happen here */
- ACPI_REPORT_ERROR(("Invalid object type: %X\n",
- ACPI_GET_OBJECT_TYPE(operand0)));
+ ACPI_ERROR((AE_INFO, "Invalid object type: %X",
+ ACPI_GET_OBJECT_TYPE(operand0)));
status = AE_AML_INTERNAL;
goto cleanup;
}